Lettr is unclaimed —

Lettr

The Email Platform Built for SaaS·lettr.com

Lettr is an email infrastructure platform built for SaaS companies, combining a REST API and SMTP relay for developers with a drag-and-drop visual editor (powered by Topol) for marketing and product teams. It sends both transactional emails (password resets, onboarding, alerts) and marketing campaigns from a single platform with one bill. Infrastructure is EU-hosted and the platform is GDPR and CCPA compliant.

What it's for

Onboarding sequencesPassword resets and security alertsTrial expiry and upgrade nudgesUsage alerts and billing notificationsProduct updates and changelogsFeature announcementsMarketing campaigns and newslettersInbound email receiving and parsingEmail automation with webhooks and templates

Features 17

Batch sending with queuing and retry logic
Bulk contact import via Audience API
Custom tracking domains
Draft and publish workflow with version history
Drag-and-drop email editor powered by Topol
Inbound email processing and parsing
MCP server to manage Lettr from AI assistants
Multilingual template management
Official SDKs for Laravel, PHP, Node.js, Go, Java, and Rust
Real-time webhooks for delivery events
REST API and SMTP relay
Searchable email logs
SPF, DKIM, and DMARC authentication
Support for HTML, plain text, and AMP email formats
Suppression management for bounces and spam complaints
Synced sections across templates
Transactional and marketing emails from one platform

At a glance

free tierAPI

TypeWeb app

DeploymentCloud

PlatformsWeb

ForSaaS companies, developers, marketing and product teams

CompanyBig Good group · 2014

Integrations

ClaudeCursor

Complianceself-reported

GDPRCCPA

Resources

Pricing

Transactional email is billed per email (free up to 3,000/month, then from $15/month with $0.80 per 1,000 extra emails). Marketing is billed per contact (free up to 500 contacts, then from $10/month). Enterprise pricing is quote-based.

FreeFree

No credit card required.

3,000 emails per month, 100 emails per day, 1 sending domain

Pro$15/mo

No dedicated IPs on this plan.

Up to 100,000 emails per month, up to 10 sending domains

Business$110/mo

Unlimited sending domains, 10 inbound routes, Unlimited webhook endpoints, Everything in Pro, 30-day data retention, Dedicated IPs (add-on), Priority support, Dedicated account manager, Deliverability consultation

Up to 200,000 emails per month, unlimited sending domains

EnterpriseQuote

Custom pricing; contact sales.

Unlimited emails

MarketingFree

Separate usage-based track for marketing campaigns, billed per contact; can be bundled with transactional for a discount.

Up to 500 contacts free

Bundle Transactional and Marketing plans for a discount (exact percentage not stated). [raw type: other]